| Aldina (1) | | - | Portuguese | |
| Aldo | | - | Italian, Portuguese, Ancient Germanic | |
| Aleixo | | ə-LAY-shoo (Portuguese), a-LAY-shaw (Galician) | Portuguese, Galician | |
| Alex | | AL-əks (English), AH-ləks (Dutch) | English, Dutch, German, French, Portuguese, Italian, Romanian, Swedish, Norwegian, Danish, Icelandic | |
| Alexandra | | al-əg-ZAN-drə (English), ah-lek-SAHN-drah (German, Romanian, Spanish, Italian), ah-lək-SAHN-drah (Dutch), ə-lə-SHAN-drə (Portuguese), ə-lə-SHAN-drə (Brazilian Portuguese) | English, German, Dutch, French, Swedish, Norwegian, Danish, Icelandic, Greek, Portuguese, Romanian, | |
| Alexandre | | a-lek-SAWNDR (French), ə-lə-SHAN-drə (Portuguese), ə-lə-SHAN-drə (Brazilian Portuguese), a-le-SHAN-dre (Galician) | French, Portuguese, Galician, Catalan | |
| Alexandrina | | al-əg-zan-DREE-nə (English) | Portuguese, English (Rare) | |
| Alfredo | | ahl-FRE-do (Italian), ahl-FRE-dho (Spanish) | Italian, Spanish, Portuguese | |
| Alice | | AL-is (English), a-LEES (French), ah-LEE-che (Italian) | English, French, Portuguese, Italian | |
| Aline | | ə-LEEN (Portuguese), ay-LEEN (English) | French, Portuguese (Brazilian), English | |
| Almir (1) | | - | Portuguese (Brazilian) | |
| Almiro | | - | Portuguese | |
| AloÍSio | | - | Portuguese | |
| Altair | | - | Astronomy, Portuguese (Brazilian) | |
| AmÁLia | | - | Hungarian, Portuguese, Slovak | |